Ventilator.



G. G. GILPIN. VENTILATORL APPLICATION FILED Fin; 7. 1915.

Patented Apr. 30, 1918.

rna Partners-Ce J GARTH enrrrrrI-r erLrnwor nrvnnsrnn, rLLInoIs,assrenon or onnrmrn'ro enanrinse. revue; ornunona, ILLINOIS; 9

earner.

T0 allwhom it may concern:

'Be'it known that I, GARTH Gnirrirnz GIL- rIN,a citizen of the UnitedStates, residing at Riverside, in the county of Cook and State ofIllinois, have invented a certain new and useful Improvement inVentilators, of which the following isajdescription, referencebeing hadto the accompanying draw.- ing, which forms a part of my specification.My invention relates to ventilatorsmore especiallyadapted forrailwayears and the like; and has; for its object the provision of aconstruction wherein the drafts or f outer currentsoi air are utilizedto induce a suetion in the outletor discharging passage of theventilatorwhich causes the vitiated air to be-withdrawn fromv thecar-interior;

A further object of the invention is to provide a construction wherebythe air-currents, regardless of their norinal direction, will be causedto flow in such manner as to provide anjefl ective degreeof "suction;and

whereby rain, cinders, and other foreign matter, will be prevented fromentering the car-interior through the ventilator.

The objects of iny invention," aswell asthe advantages inherent in theconstruction, will be more fully understood'troin the following detaileddescription of the accompanying drawing, wherein:,' j Figure lis aperspective view of a 'por tion of a car-roof, showing: the applicationof niy ilnprovediventilator which is shown in vertical section] v Fig. 2is a topplan and sectional View of my. improved ventilator.

Fig. 3 is a vertical sectional view of a modified form. Fig. 4illustrates another modified form in elevation. V

In the particular exemplification of my invention, the ventilatorisshown applied to theusual ventilator window or opening of the clearstoryof a inonitortype of carroof so "as to provide considerable clearancebetween the bottom of the ventilator and the lower deck of the roof theusual windowopeningbeing'shown at5 in Fig. 1 arranged in the sides ofthe clearstory; the ventilator being either secured in the opening or adjacent theretoasshown,

VENTILATOR.

Speeifibationof Letters Patent. Patiq5ntgd Apr; gt'higllfi, Applicationfiled February 7, 1916. S eria1No.7S,S4 5.

The'ventilator inxits preferred form coniprisesj a 'metallic housinghaving one side wall 6 and two end walls 7 ,7 "Theho'using is providedwith'the attachingfiange-portiOnsSQpreferably made integral with the twoend walls7,7 and alsomade continuous 'soasto extendfroniendwall-toendwall along the top and bottom of the construction. Thesideadapted to be secured against haust openings'for the passage ofthev'itiated air withdrawn from the car-interior through the action of theair-currents passing across theupper and lower edges of the windward orair-impinging wall or side of the housing. y

In order to prevent rain, snow, cinders and other foreign matterentering thecar-inte rior through the top or bottom of the ventilator,Iprovide the deflecting nieinbers 9 and 10 at the top and bottom,respectively. The deflector 9 at the top is shown integral with, orotherwise secured to the longitudinally disposed attaching flange 8-i1nniediately above the car-communicatingopening, and is arranged toextend downwardly intermediate oftheend walls, the deflector beingpreferably materially larger or of greater width thanlower deflectorlOpDeflector 10 is formed integral with, 0 otherwise secured to, the lowerlongitudinallydisposed attaching'flange 8, see Fig. 1. The lowerdeflector 1O curves slightly up wardly toward its outer' edge, as shownin Fig. 1, so that anycross-currents'of air, as well as snow, rain, andother foreign substance, which are forced against thelower deck oradjacent the clearstorybeneath the ventilator will be deflecteddownwardly and faces.

the ear-interior and therefore prevented from entering through thewindow-opening in the car-roof. The deflectors 9 and 10 are both soformed to extend intermediate of the horizontal planes occupied by theupper and lower edges of the side and end walls; in other words thedeflectors do not project beyond the outer walls or air-impinging sur-The deflectors 9 and 10 are so disposed that a considerable space oropening will be left intermediate of the unattached edges thereof, so asto provide a comparatively large space for the free egress of the,vitiated air from the car-interior through the eduction or exhaustingaction caused by the outer air-currents.

With the ventilator secured adjacent the opening in the clearstory ofthe roof so as to provide the clearance between the ventilator and thelower deck of the roof of the car, it is apparentthat the ventilatorwill permit the foul air of the car to be with drawn either through thebottom of the ventilator or through the top thereof, which, in thepreferred construction, are left practically entirely open, except in sofar as the deflectors 9 and 10 areconcerned.

The two end walls 7., 7 and the side wall 6 are preferably made flat andprovided with the horizontally disposed upper and lower edges which willinduce the air-currents impinging against said walls to pass about saidedges and across the openings in the top and bottom of the ventilatorand thereby createan eduction action or suction in the ventilator whichwill cause air to be withdrawn from the interior of the car through theopen side and between the widely. sepa ratedideflectors 9 and 10. a

As illustrated in the drawing, the walls 7 7, which I have termed theend walls, are disposed substantially at right angles to thelongitudinal axis of the car, so that movement of the car, in eitherdirection, will cause the air to impinge against the forwardly presentedend wall and be directed across the open top and bottom and therebycause a suction or eduction action in the ventilator as described.

In the event that the outer air-currents should be cross-wise or in adirection transversely to the car, the air will impinge against the sidewall 6, and its passage over the edges of the side wall will likewisecause the vitiated air of the car to be withdrawn therefrom and forcedto flow through the discharge openings of the ventilator.

Where the air-currents are in a downward direction, they will impingeagainst the downwardly sloping surface of deflector 9 and be caused toflow through the ventilator and ,be'discharged at the bottom; and inview of the fact that deflector 10 is made shorter than deflector 9, theair-currents.

through the ventilator as just described, will not be interrupted or inany way interfered with.

Any downward air-currents that may impinge against the wall or side 6and pass over the lower edge thereof will assist the action of thosepassing downwardly through the ventilator, and by reason of thecurvature of deflector 10 will be caused to flow about the end walls ofthe structure and also toward the lower deck of the roof, and thereforeprevented from passing upward through the eduction orcommunicatingopening in the side of the ventilator and into the car.

In Fig. 3, I show a modified form of the ventilator, which, in generalconstruction, is identical with the construction shown in Figs. 1 and 2,the modification comprising a number of louvers or baflle members 11arranged intermediate of the deflectors 9 and 10 and extending from endwall to end wall the louvers being preferably arranged in staggeredrelation to each other as disclosed in Fig. 3, so as to providesufiicient openings intermediate of the longitudinal edges of thelouvers 01' battle members and the deflectors 9 and 10. I have shown theconstruction disclosed in Fig. 3 provided with the three baffles orlouvers, but it is apparent that any suitable number may be employedwhich will prevent foreign substance being forced through the open sideor CiIl'-C0ll1- municating opening of the ventilator through the actionof any cross currents that may impinge against the ear-roof beneath theventilator, especially when the car is not in rapid motion.

In Fig. 4, I show another form of my improved ventilator, (that shown inthe preceding figures being, however, the preferred form) wherein thewalls 7, which I have termed end walls, are swelled outwardly, somewhatin the nature of a horizontally disposed V, in cross-section; thegeneral construction of the ventilator, however, being identical withthe construction previously described and shown in Figs. 1 and 2.

I have shown and described these embodiments of my invention, butmodifications in certain respects may be made without, however,departing from the spirit of my invention, and I do not wish to beunderstood therefor as limiting myself to the exact construction shownand described.

What I claim is 1. In a car ventilator, the combination of a structurehaving end walls and a side wall connecting the end walls, saidstructure being open at the top and bottom and at the side opposite saidside wall and being provided with means whereby it may be secured to theexterior of a car with its open side communicating with the interiorthereof and its end walls, substantially transverse to the line oftravel of the car, a deflecting A member extendin g Q dowinvardly andoutwardly, from ,the ltop of ,the open side of, said structure and fromone end wall to the other; and a deflecting member extending in a curveoutwardly and upwardly fromqthc bottom of said open sideand from' oneend wall to the other; said cleflecting -niembers dividing the interiorof the ventilator into inner of which spaces opens directly andunobstructedly into the car and the outer of which opens at top andbottom unobstructedly into the outside atmosphere.

2. In a car ventilator, the combination of a structure having end wallsand a side wall connecting the end walls, said structure being open atthe top and bottom and at the side opposite said side wall and beingprovided with means whereby it may be secured to the exterior of a carwith its open side conilmunicating with the interior thereof and its endwalls, substantially transverse to the line of travel of the car; anddeflecting members extending outwardly from the top and bottomrespectively, of the open side of said structure and from end wall toend wall so that a gap intervenes between their outer edges; one of saiddeflecting members having an inclination toward the other; saiddeflecting members dividing the interior of the, ventilator into twounobstructed spaces communicating through said gap, one of said spacesopening directly and unobstructedly into the car-and the other openingat top and bottom nnobstructeclly to the out side atmosphere.

In a car ventilator, the combination of a structure havlng end Walls anda side Wall connecting the end walls, said structure being open at thetop and bottom and at the side opposite said sidewall and being providedwith means whereby it may be secured to the exterior of a car with itsopen side communicating with the interior thereof and its end walls,substantially transverse to the line of travel of the car, a deflectingmember extending downwardly from the top of the open side ofsaid'structure and from one end wall. to the other; and a deflectingmember extending outwardly from the bottom of said open side and fromone end wall to the other, one of said members having an inclinationtoward the other; said defleeting members dividing the interior of theventilator into two unobstructed spaces in communication. through a gapbetween said members, the inner of which spaces opens directly andunobstructedly into the car and the outer of which opens at top andbottom unobstructedly into the outside atmosphere, and louvers arrangedin the gap between said deflecting members.

4. In a car ventilator, the combination of a structure having end wallsand a side wall being eiwniet l We -side}opposite;:said-mide; nvall a db Qvided av v flared-t h ri nei' ear nae communicating. \withthein-terip V t ldw tsw e di-i-w l alseba litia r t ees ar to the lineof-travel of the car; a deflecting two unobstructed spaces in.eomnmnication through a gap between said members, cthe li -meanswhereby, i

memb er extending: outwardly; from athe bettomnof the open side of saidventilator and and outwardly from the top of said opening and from endwall to end wall, the last mentioned deflecting member projectingoutwardly beyond the other deflecting member;

said deflecting members dividing the inte rior of the ventilator intotwo unobstructed spaces in communication through a gap be tween saidmembers, one of said spaces opening directly and unobstructedly into thecar and the other opening at top and bottom unobstructedly to theoutside atmosphere.

5. In a car ventilator, the combination of a structure having end wallsand a side wall connecting said end walls, said structure being open atthe top and bottom and at the side opposite said sidewall and beingprovided with means whereby it may be secured to the exterior of a carwith its open side communicating with the interior thereof and its endwalls, substantially transverse to the line of travel of the car; adeflecting member extending outwardly from the bottom of the open sideof said ventilator and from end wall to end wall thereof; and adeflecting member extending downwardly and outwardly from the top ofsaidopening and from end wall to end wall, the last mentioned deflectingmember projecting outwardly beyond the other deflecting member; saiddeflecting members dividing the interior of the ventilator into twounobstructed spaces in communication through a gap be tween saidmembers, one of said spaces. opening directly and unobstructedly intothe car and the other opening at top and bottom unobstructedly to theoutside atmosphere, and louvers arranged in the gap between saiddeflecting members which extend from end wall to end wall.

6. In a'car ventilator, the combination of a structure having end wallsand a side wall connecting the end walls, said structure being open atthe top and bottom and at the side opposite said side wall and beingprovided with means whereby it may be secured to the exterior of a carwith its open side wardly from the bottom of said open side the otheropening at top and bottom unoband from end Wall to end Wall; saiddestructedly to the outside atmosphere.

fleeting members dividing the interior of i r the ventilator into twounobstructed spaces GARTH GRIFFITH GILPI1\' in communication through agap between Witnesses:

said members, one of said Spaces opening GEORGE HE DMAN, directly andunobstructedly into the car and F. A. FLORELL.

"Copies'ofthis patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

, z Washington, D. C.

